406318228 has 6 divisors (see below), whose sum is σ = 711056906. Its totient is φ = 203159112.

The previous prime is 406318183. The next prime is 406318259. The reversal of 406318228 is 822813604.

It can be written as a sum of positive squares in only one way, i.e., 368716804 + 37601424 = 19202^2 + 6132^2 .

It is a junction number, because it is equal to n+sod(n) for n = 406318193 and 406318202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50789775 + ... + 50789782.

Almost surely, 2^406318228 is an apocalyptic number.

It is an amenable number.

406318228 is a deficient number, since it is larger than the sum of its proper divisors (304738678).

406318228 is a wasteful number, since it uses less digits than its factorization.

406318228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101579561 (or 101579559 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 406318228 is about 20157.3368280634. The cubic root of 406318228 is about 740.6654763567.

The spelling of 406318228 in words is "four hundred six million, three hundred eighteen thousand, two hundred twenty-eight".